Effect of Ionizing Irradiation on the Segmental Mobility of Polyvinyl Alcohol Macromolecular Chains

The effect of ionizing radiation on the segmental mobility of chains of polyvinyl alcohol (PVA) macromolecules has been studied by relaxation spectrometry. It has been shown that depending on the electron beam radiation dose, the degree of relaxational microinhomogeneity of the α-relaxation process...

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Bibliographic Details
Published inHigh energy chemistry Vol. 56; no. 5; pp. 363 - 373
Main Authors Lomovskoy, V. A., Suvorova, O. V., Abaturova, N. A., Lomovskaya, N. Yu, Kulyukhin, S. A., Pavlov, Yu. S.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.10.2022
Springer Nature B.V
Subjects
Chain mobility
Chain scission
Chemistry
Chemistry and Materials Science
Cleavage
Crosslinking
Electron beams
Ionizing radiation
Macromolecules
Mechanical properties
Molecular chains
Physical Chemistry
Polyvinyl alcohol
Radiation Chemistry
Radiation dosage
dissipative processes
polyvinyl alcohol
ionizing radiation
relaxation properties
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Summary:The effect of ionizing radiation on the segmental mobility of chains of polyvinyl alcohol (PVA) macromolecules has been studied by relaxation spectrometry. It has been shown that depending on the electron beam radiation dose, the degree of relaxational microinhomogeneity of the α-relaxation process increases significantly due to the scission of macromolecule chains or their crosslinking and structural rearrangement. No significant changes in the mechanical properties of PVA depending on the γ-radiation dose at absorbed doses in the range from 700 to 1500 kGy have been revealed.
ISSN:0018-1439
1608-3148
DOI:10.1134/S0018143922050101